Dataset statistics
| Number of variables | 15 |
|---|---|
| Number of observations | 5163 |
| Missing cells | 0 |
| Missing cells (%) | 0.0% |
| Duplicate rows | 0 |
| Duplicate rows (%) | 0.0% |
| Total size in memory | 499.7 KiB |
| Average record size in memory | 99.1 B |
Variable types
| NUM | 12 |
|---|---|
| CAT | 3 |
Reproduction
| Analysis started | 2020-07-17 21:04:31.148944 |
|---|---|
| Analysis finished | 2020-07-17 21:05:15.128606 |
| Duration | 43.98 seconds |
| Version | pandas-profiling v2.8.0 |
| Command line | pandas_profiling --config_file config.yaml [YOUR_FILE.csv] |
| Download configuration | config.yaml |
citric acid has 128 (2.5%) zeros | Zeros |
fixed acidity
Real number (ℝ≥0)
| Distinct count | 87 |
|---|---|
| Unique (%) | 1.7% |
| Missing | 0 |
| Missing (%) | 0.0% |
| Infinite | 0 |
| Infinite (%) | 0.0% |
| Mean | 7.1592194460584935 |
|---|---|
| Minimum | 3.8 |
| Maximum | 12.4 |
| Zeros | 0 |
| Zeros (%) | 0.0% |
| Memory size | 40.3 KiB |
Quantile statistics
| Minimum | 3.8 |
|---|---|
| 5-th percentile | 5.6 |
| Q1 | 6.4 |
| median | 6.9 |
| Q3 | 7.7 |
| 95-th percentile | 9.6 |
| Maximum | 12.4 |
| Range | 8.6 |
| Interquartile range (IQR) | 1.3 |
Descriptive statistics
| Standard deviation | 1.207939892 |
|---|---|
| Coefficient of variation (CV) | 0.1687250825 |
| Kurtosis | 2.427968824 |
| Mean | 7.159219446 |
| Median Absolute Deviation (MAD) | 0.6 |
| Skewness | 1.264268435 |
| Sum | 36963.05 |
| Variance | 1.459118782 |
| Value | Count | Frequency (%) | |
| 6.8 | 274 | 5.3% | |
| 6.6 | 268 | 5.2% | |
| 6.4 | 243 | 4.7% | |
| 7 | 222 | 4.3% | |
| 6.9 | 219 | 4.2% | |
| 6.7 | 207 | 4.0% | |
| 7.2 | 200 | 3.9% | |
| 7.1 | 197 | 3.8% | |
| 6.5 | 196 | 3.8% | |
| 6.2 | 174 | 3.4% | |
| Other values (77) | 2963 | 57.4% |
| Value | Count | Frequency (%) | |
| 3.8 | 1 | < 0.1% | |
| 3.9 | 1 | < 0.1% | |
| 4.2 | 2 | < 0.1% | |
| 4.4 | 3 | 0.1% | |
| 4.5 | 1 | < 0.1% |
| Value | Count | Frequency (%) | |
| 12.4 | 4 | 0.1% | |
| 12.3 | 3 | 0.1% | |
| 12.2 | 2 | < 0.1% | |
| 12.1 | 1 | < 0.1% | |
| 12 | 7 | 0.1% |
volatile acidity
Real number (ℝ≥0)
| Distinct count | 172 |
|---|---|
| Unique (%) | 3.3% |
| Missing | 0 |
| Missing (%) | 0.0% |
| Infinite | 0 |
| Infinite (%) | 0.0% |
| Mean | 0.3382916908773969 |
|---|---|
| Minimum | 0.08 |
| Maximum | 1.01 |
| Zeros | 0 |
| Zeros (%) | 0.0% |
| Memory size | 40.3 KiB |
Quantile statistics
| Minimum | 0.08 |
|---|---|
| 5-th percentile | 0.16 |
| Q1 | 0.23 |
| median | 0.29 |
| Q3 | 0.4 |
| 95-th percentile | 0.67 |
| Maximum | 1.01 |
| Range | 0.93 |
| Interquartile range (IQR) | 0.17 |
Descriptive statistics
| Standard deviation | 0.1600232649 |
|---|---|
| Coefficient of variation (CV) | 0.4730333887 |
| Kurtosis | 1.545287171 |
| Mean | 0.3382916909 |
| Median Absolute Deviation (MAD) | 0.08 |
| Skewness | 1.318794115 |
| Sum | 1746.6 |
| Variance | 0.02560744531 |
| Value | Count | Frequency (%) | |
| 0.28 | 229 | 4.4% | |
| 0.24 | 217 | 4.2% | |
| 0.26 | 217 | 4.2% | |
| 0.25 | 184 | 3.6% | |
| 0.27 | 182 | 3.5% | |
| 0.22 | 180 | 3.5% | |
| 0.23 | 177 | 3.4% | |
| 0.2 | 175 | 3.4% | |
| 0.3 | 166 | 3.2% | |
| 0.32 | 162 | 3.1% | |
| Other values (162) | 3274 | 63.4% |
| Value | Count | Frequency (%) | |
| 0.08 | 2 | < 0.1% | |
| 0.085 | 1 | < 0.1% | |
| 0.09 | 1 | < 0.1% | |
| 0.1 | 6 | 0.1% | |
| 0.105 | 4 | 0.1% |
| Value | Count | Frequency (%) | |
| 1.01 | 1 | < 0.1% | |
| 1.005 | 2 | < 0.1% | |
| 1 | 2 | < 0.1% | |
| 0.98 | 3 | 0.1% | |
| 0.975 | 1 | < 0.1% |
| Distinct count | 83 |
|---|---|
| Unique (%) | 1.6% |
| Missing | 0 |
| Missing (%) | 0.0% |
| Infinite | 0 |
| Infinite (%) | 0.0% |
| Mean | 0.3148944412163471 |
|---|---|
| Minimum | 0.0 |
| Maximum | 0.88 |
| Zeros | 128 |
| Zeros (%) | 2.5% |
| Memory size | 40.3 KiB |
Quantile statistics
| Minimum | 0 |
|---|---|
| 5-th percentile | 0.04 |
| Q1 | 0.24 |
| median | 0.31 |
| Q3 | 0.39 |
| 95-th percentile | 0.54 |
| Maximum | 0.88 |
| Range | 0.88 |
| Interquartile range (IQR) | 0.15 |
Descriptive statistics
| Standard deviation | 0.1404393515 |
|---|---|
| Coefficient of variation (CV) | 0.4459886651 |
| Kurtosis | 0.8018415846 |
| Mean | 0.3148944412 |
| Median Absolute Deviation (MAD) | 0.07 |
| Skewness | 0.1695068094 |
| Sum | 1625.8 |
| Variance | 0.01972321144 |
| Value | Count | Frequency (%) | |
| 0.3 | 253 | 4.9% | |
| 0.32 | 239 | 4.6% | |
| 0.28 | 231 | 4.5% | |
| 0.49 | 217 | 4.2% | |
| 0.34 | 202 | 3.9% | |
| 0.26 | 199 | 3.9% | |
| 0.29 | 195 | 3.8% | |
| 0.31 | 187 | 3.6% | |
| 0.24 | 180 | 3.5% | |
| 0.27 | 179 | 3.5% | |
| Other values (73) | 3081 | 59.7% |
| Value | Count | Frequency (%) | |
| 0 | 128 | 2.5% | |
| 0.01 | 31 | 0.6% | |
| 0.02 | 42 | 0.8% | |
| 0.03 | 26 | 0.5% | |
| 0.04 | 33 | 0.6% |
| Value | Count | Frequency (%) | |
| 0.88 | 1 | < 0.1% | |
| 0.86 | 1 | < 0.1% | |
| 0.82 | 2 | < 0.1% | |
| 0.81 | 1 | < 0.1% | |
| 0.8 | 1 | < 0.1% |
residual sugar
Real number (ℝ≥0)
| Distinct count | 311 |
|---|---|
| Unique (%) | 6.0% |
| Missing | 0 |
| Missing (%) | 0.0% |
| Infinite | 0 |
| Infinite (%) | 0.0% |
| Mean | 5.05370908386597 |
|---|---|
| Minimum | 0.6 |
| Maximum | 22.6 |
| Zeros | 0 |
| Zeros (%) | 0.0% |
| Memory size | 40.3 KiB |
Quantile statistics
| Minimum | 0.6 |
|---|---|
| 5-th percentile | 1.1 |
| Q1 | 1.8 |
| median | 2.8 |
| Q3 | 7.5 |
| 95-th percentile | 14.4 |
| Maximum | 22.6 |
| Range | 22 |
| Interquartile range (IQR) | 5.7 |
Descriptive statistics
| Standard deviation | 4.398801096 |
|---|---|
| Coefficient of variation (CV) | 0.8704104298 |
| Kurtosis | 0.7054124615 |
| Mean | 5.053709084 |
| Median Absolute Deviation (MAD) | 1.5 |
| Skewness | 1.253350607 |
| Sum | 26092.3 |
| Variance | 19.34945108 |
| Value | Count | Frequency (%) | |
| 1.6 | 196 | 3.8% | |
| 2 | 191 | 3.7% | |
| 1.4 | 190 | 3.7% | |
| 1.8 | 184 | 3.6% | |
| 1.2 | 167 | 3.2% | |
| 1.5 | 149 | 2.9% | |
| 2.2 | 149 | 2.9% | |
| 1.9 | 143 | 2.8% | |
| 2.1 | 142 | 2.8% | |
| 1.7 | 138 | 2.7% | |
| Other values (301) | 3514 | 68.1% |
| Value | Count | Frequency (%) | |
| 0.6 | 1 | < 0.1% | |
| 0.7 | 7 | 0.1% | |
| 0.8 | 25 | 0.5% | |
| 0.9 | 36 | 0.7% | |
| 0.95 | 3 | 0.1% |
| Value | Count | Frequency (%) | |
| 22.6 | 1 | < 0.1% | |
| 22 | 1 | < 0.1% | |
| 20.8 | 2 | < 0.1% | |
| 20.7 | 1 | < 0.1% | |
| 20.4 | 1 | < 0.1% |
chlorides
Real number (ℝ≥0)
| Distinct count | 166 |
|---|---|
| Unique (%) | 3.2% |
| Missing | 0 |
| Missing (%) | 0.0% |
| Infinite | 0 |
| Infinite (%) | 0.0% |
| Mean | 0.05382064691071082 |
|---|---|
| Minimum | 0.009 |
| Maximum | 0.204 |
| Zeros | 0 |
| Zeros (%) | 0.0% |
| Memory size | 40.3 KiB |
Quantile statistics
| Minimum | 0.009 |
|---|---|
| 5-th percentile | 0.028 |
| Q1 | 0.038 |
| median | 0.047 |
| Q3 | 0.064 |
| 95-th percentile | 0.097 |
| Maximum | 0.204 |
| Range | 0.195 |
| Interquartile range (IQR) | 0.026 |
Descriptive statistics
| Standard deviation | 0.0251065838 |
|---|---|
| Coefficient of variation (CV) | 0.4664861022 |
| Kurtosis | 5.854709234 |
| Mean | 0.05382064691 |
| Median Absolute Deviation (MAD) | 0.011 |
| Skewness | 1.981545358 |
| Sum | 277.876 |
| Variance | 0.00063034055 |
| Value | Count | Frequency (%) | |
| 0.036 | 165 | 3.2% | |
| 0.044 | 160 | 3.1% | |
| 0.042 | 157 | 3.0% | |
| 0.046 | 156 | 3.0% | |
| 0.04 | 151 | 2.9% | |
| 0.047 | 145 | 2.8% | |
| 0.048 | 143 | 2.8% | |
| 0.038 | 141 | 2.7% | |
| 0.05 | 140 | 2.7% | |
| 0.034 | 136 | 2.6% | |
| Other values (156) | 3669 | 71.1% |
| Value | Count | Frequency (%) | |
| 0.009 | 1 | < 0.1% | |
| 0.012 | 1 | < 0.1% | |
| 0.013 | 1 | < 0.1% | |
| 0.014 | 4 | 0.1% | |
| 0.015 | 3 | 0.1% |
| Value | Count | Frequency (%) | |
| 0.204 | 1 | < 0.1% | |
| 0.201 | 1 | < 0.1% | |
| 0.2 | 2 | < 0.1% | |
| 0.197 | 2 | < 0.1% | |
| 0.194 | 2 | < 0.1% |
free sulfur dioxide
Real number (ℝ≥0)
| Distinct count | 122 |
|---|---|
| Unique (%) | 2.4% |
| Missing | 0 |
| Missing (%) | 0.0% |
| Infinite | 0 |
| Infinite (%) | 0.0% |
| Mean | 30.044450900639163 |
|---|---|
| Minimum | 1.0 |
| Maximum | 101.0 |
| Zeros | 0 |
| Zeros (%) | 0.0% |
| Memory size | 40.3 KiB |
Quantile statistics
| Minimum | 1 |
|---|---|
| 5-th percentile | 6 |
| Q1 | 17 |
| median | 28 |
| Q3 | 41 |
| 95-th percentile | 61 |
| Maximum | 101 |
| Range | 100 |
| Interquartile range (IQR) | 24 |
Descriptive statistics
| Standard deviation | 16.85639455 |
|---|---|
| Coefficient of variation (CV) | 0.5610485147 |
| Kurtosis | -0.03643826613 |
| Mean | 30.0444509 |
| Median Absolute Deviation (MAD) | 12 |
| Skewness | 0.5806901972 |
| Sum | 155119.5 |
| Variance | 284.1380373 |
| Value | Count | Frequency (%) | |
| 29 | 144 | 2.8% | |
| 6 | 136 | 2.6% | |
| 26 | 132 | 2.6% | |
| 15 | 128 | 2.5% | |
| 24 | 126 | 2.4% | |
| 31 | 123 | 2.4% | |
| 34 | 121 | 2.3% | |
| 17 | 120 | 2.3% | |
| 23 | 118 | 2.3% | |
| 28 | 113 | 2.2% | |
| Other values (112) | 3902 | 75.6% |
| Value | Count | Frequency (%) | |
| 1 | 2 | < 0.1% | |
| 2 | 2 | < 0.1% | |
| 3 | 48 | 0.9% | |
| 4 | 43 | 0.8% | |
| 5 | 97 | 1.9% |
| Value | Count | Frequency (%) | |
| 101 | 1 | < 0.1% | |
| 98 | 1 | < 0.1% | |
| 97 | 1 | < 0.1% | |
| 96 | 2 | < 0.1% | |
| 95 | 1 | < 0.1% |
total sulfur dioxide
Real number (ℝ≥0)
| Distinct count | 269 |
|---|---|
| Unique (%) | 5.2% |
| Missing | 0 |
| Missing (%) | 0.0% |
| Infinite | 0 |
| Infinite (%) | 0.0% |
| Mean | 114.81183420491962 |
|---|---|
| Minimum | 6.0 |
| Maximum | 303.0 |
| Zeros | 0 |
| Zeros (%) | 0.0% |
| Memory size | 40.3 KiB |
Quantile statistics
| Minimum | 6 |
|---|---|
| 5-th percentile | 19 |
| Q1 | 77 |
| median | 117 |
| Q3 | 154 |
| 95-th percentile | 204 |
| Maximum | 303 |
| Range | 297 |
| Interquartile range (IQR) | 77 |
Descriptive statistics
| Standard deviation | 55.70020358 |
|---|---|
| Coefficient of variation (CV) | 0.4851433998 |
| Kurtosis | -0.5762256675 |
| Mean | 114.8118342 |
| Median Absolute Deviation (MAD) | 38 |
| Skewness | -0.02836019885 |
| Sum | 592773.5 |
| Variance | 3102.512679 |
| Value | Count | Frequency (%) | |
| 111 | 54 | 1.0% | |
| 113 | 49 | 0.9% | |
| 98 | 48 | 0.9% | |
| 114 | 48 | 0.9% | |
| 122 | 47 | 0.9% | |
| 128 | 46 | 0.9% | |
| 117 | 44 | 0.9% | |
| 101 | 43 | 0.8% | |
| 126 | 43 | 0.8% | |
| 124 | 43 | 0.8% | |
| Other values (259) | 4698 | 91.0% |
| Value | Count | Frequency (%) | |
| 6 | 2 | < 0.1% | |
| 7 | 4 | 0.1% | |
| 8 | 11 | 0.2% | |
| 9 | 13 | 0.3% | |
| 10 | 23 | 0.4% |
| Value | Count | Frequency (%) | |
| 303 | 1 | < 0.1% | |
| 289 | 1 | < 0.1% | |
| 282 | 1 | < 0.1% | |
| 278 | 1 | < 0.1% | |
| 272 | 1 | < 0.1% |
density
Real number (ℝ≥0)
| Distinct count | 17 |
|---|---|
| Unique (%) | 0.3% |
| Missing | 0 |
| Missing (%) | 0.0% |
| Infinite | 0 |
| Infinite (%) | 0.0% |
| Mean | 0.9944433468913424 |
|---|---|
| Minimum | 0.987 |
| Maximum | 1.003 |
| Zeros | 0 |
| Zeros (%) | 0.0% |
| Memory size | 40.3 KiB |
Quantile statistics
| Minimum | 0.987 |
|---|---|
| 5-th percentile | 0.99 |
| Q1 | 0.992 |
| median | 0.995 |
| Q3 | 0.997 |
| 95-th percentile | 0.999 |
| Maximum | 1.003 |
| Range | 0.016 |
| Interquartile range (IQR) | 0.005 |
Descriptive statistics
| Standard deviation | 0.002866464266 |
|---|---|
| Coefficient of variation (CV) | 0.002882481214 |
| Kurtosis | -0.7814614351 |
| Mean | 0.9944433469 |
| Median Absolute Deviation (MAD) | 0.002 |
| Skewness | -0.01553094364 |
| Sum | 5134.311 |
| Variance | 8.21661739e-06 |
| Value | Count | Frequency (%) | |
| 0.996 | 649 | 12.6% | |
| 0.995 | 570 | 11.0% | |
| 0.997 | 554 | 10.7% | |
| 0.992 | 550 | 10.7% | |
| 0.994 | 541 | 10.5% | |
| 0.993 | 536 | 10.4% | |
| 0.998 | 465 | 9.0% | |
| 0.991 | 444 | 8.6% | |
| 0.99 | 327 | 6.3% | |
| 0.999 | 203 | 3.9% | |
| Other values (7) | 324 | 6.3% |
| Value | Count | Frequency (%) | |
| 0.987 | 8 | 0.2% | |
| 0.988 | 16 | 0.3% | |
| 0.989 | 139 | 2.7% | |
| 0.99 | 327 | 6.3% | |
| 0.991 | 444 | 8.6% |
| Value | Count | Frequency (%) | |
| 1.003 | 3 | 0.1% | |
| 1.002 | 4 | 0.1% | |
| 1.001 | 24 | 0.5% | |
| 1 | 130 | 2.5% | |
| 0.999 | 203 | 3.9% |
pH
Real number (ℝ≥0)
| Distinct count | 106 |
|---|---|
| Unique (%) | 2.1% |
| Missing | 0 |
| Missing (%) | 0.0% |
| Infinite | 0 |
| Infinite (%) | 0.0% |
| Mean | 3.2258706178578342 |
|---|---|
| Minimum | 2.72 |
| Maximum | 3.85 |
| Zeros | 0 |
| Zeros (%) | 0.0% |
| Memory size | 40.3 KiB |
Quantile statistics
| Minimum | 2.72 |
|---|---|
| 5-th percentile | 2.98 |
| Q1 | 3.12 |
| median | 3.22 |
| Q3 | 3.33 |
| 95-th percentile | 3.5 |
| Maximum | 3.85 |
| Range | 1.13 |
| Interquartile range (IQR) | 0.21 |
Descriptive statistics
| Standard deviation | 0.1580131148 |
|---|---|
| Coefficient of variation (CV) | 0.04898309123 |
| Kurtosis | 0.204007762 |
| Mean | 3.225870618 |
| Median Absolute Deviation (MAD) | 0.1 |
| Skewness | 0.3298230235 |
| Sum | 16655.17 |
| Variance | 0.02496814443 |
| Value | Count | Frequency (%) | |
| 3.22 | 152 | 2.9% | |
| 3.16 | 152 | 2.9% | |
| 3.14 | 144 | 2.8% | |
| 3.2 | 140 | 2.7% | |
| 3.24 | 138 | 2.7% | |
| 3.15 | 138 | 2.7% | |
| 3.19 | 134 | 2.6% | |
| 3.18 | 134 | 2.6% | |
| 3.12 | 126 | 2.4% | |
| 3.17 | 125 | 2.4% | |
| Other values (96) | 3780 | 73.2% |
| Value | Count | Frequency (%) | |
| 2.72 | 1 | < 0.1% | |
| 2.74 | 1 | < 0.1% | |
| 2.77 | 1 | < 0.1% | |
| 2.79 | 2 | < 0.1% | |
| 2.8 | 3 | 0.1% |
| Value | Count | Frequency (%) | |
| 3.85 | 1 | < 0.1% | |
| 3.82 | 1 | < 0.1% | |
| 3.81 | 1 | < 0.1% | |
| 3.8 | 2 | < 0.1% | |
| 3.79 | 1 | < 0.1% |
sulphates
Real number (ℝ≥0)
| Distinct count | 90 |
|---|---|
| Unique (%) | 1.7% |
| Missing | 0 |
| Missing (%) | 0.0% |
| Infinite | 0 |
| Infinite (%) | 0.0% |
| Mean | 0.5265407708696495 |
|---|---|
| Minimum | 0.22 |
| Maximum | 1.13 |
| Zeros | 0 |
| Zeros (%) | 0.0% |
| Memory size | 40.3 KiB |
Quantile statistics
| Minimum | 0.22 |
|---|---|
| 5-th percentile | 0.34 |
| Q1 | 0.43 |
| median | 0.51 |
| Q3 | 0.6 |
| 95-th percentile | 0.78 |
| Maximum | 1.13 |
| Range | 0.91 |
| Interquartile range (IQR) | 0.17 |
Descriptive statistics
| Standard deviation | 0.1340264147 |
|---|---|
| Coefficient of variation (CV) | 0.2545413806 |
| Kurtosis | 1.131917692 |
| Mean | 0.5265407709 |
| Median Absolute Deviation (MAD) | 0.08 |
| Skewness | 0.895018532 |
| Sum | 2718.53 |
| Variance | 0.01796307985 |
| Value | Count | Frequency (%) | |
| 0.5 | 211 | 4.1% | |
| 0.46 | 196 | 3.8% | |
| 0.54 | 191 | 3.7% | |
| 0.44 | 182 | 3.5% | |
| 0.48 | 165 | 3.2% | |
| 0.52 | 162 | 3.1% | |
| 0.38 | 162 | 3.1% | |
| 0.45 | 157 | 3.0% | |
| 0.47 | 156 | 3.0% | |
| 0.49 | 154 | 3.0% | |
| Other values (80) | 3427 | 66.4% |
| Value | Count | Frequency (%) | |
| 0.22 | 1 | < 0.1% | |
| 0.23 | 1 | < 0.1% | |
| 0.25 | 4 | 0.1% | |
| 0.26 | 3 | 0.1% | |
| 0.27 | 10 | 0.2% |
| Value | Count | Frequency (%) | |
| 1.13 | 1 | < 0.1% | |
| 1.12 | 1 | < 0.1% | |
| 1.11 | 1 | < 0.1% | |
| 1.1 | 1 | < 0.1% | |
| 1.08 | 2 | < 0.1% |
alcohol
Real number (ℝ≥0)
| Distinct count | 110 |
|---|---|
| Unique (%) | 2.1% |
| Missing | 0 |
| Missing (%) | 0.0% |
| Infinite | 0 |
| Infinite (%) | 0.0% |
| Mean | 10.558407902382335 |
|---|---|
| Minimum | 8.0 |
| Maximum | 14.2 |
| Zeros | 0 |
| Zeros (%) | 0.0% |
| Memory size | 40.3 KiB |
Quantile statistics
| Minimum | 8 |
|---|---|
| 5-th percentile | 9 |
| Q1 | 9.5 |
| median | 10.4 |
| Q3 | 11.4 |
| 95-th percentile | 12.7 |
| Maximum | 14.2 |
| Range | 6.2 |
| Interquartile range (IQR) | 1.9 |
Descriptive statistics
| Standard deviation | 1.186362275 |
|---|---|
| Coefficient of variation (CV) | 0.1123618529 |
| Kurtosis | -0.5685316314 |
| Mean | 10.5584079 |
| Median Absolute Deviation (MAD) | 0.9 |
| Skewness | 0.5319390182 |
| Sum | 54513.06 |
| Variance | 1.407455448 |
| Value | Count | Frequency (%) | |
| 9.5 | 274 | 5.3% | |
| 9.4 | 249 | 4.8% | |
| 10 | 200 | 3.9% | |
| 9.2 | 197 | 3.8% | |
| 10.5 | 185 | 3.6% | |
| 11 | 171 | 3.3% | |
| 9.8 | 166 | 3.2% | |
| 10.4 | 164 | 3.2% | |
| 9.3 | 159 | 3.1% | |
| 10.2 | 153 | 3.0% | |
| Other values (100) | 3245 | 62.9% |
| Value | Count | Frequency (%) | |
| 8 | 2 | < 0.1% | |
| 8.4 | 3 | 0.1% | |
| 8.5 | 10 | 0.2% | |
| 8.6 | 15 | 0.3% | |
| 8.7 | 47 | 0.9% |
| Value | Count | Frequency (%) | |
| 14.2 | 1 | < 0.1% | |
| 14.05 | 1 | < 0.1% | |
| 14 | 11 | 0.2% | |
| 13.9 | 3 | 0.1% | |
| 13.8 | 2 | < 0.1% |
quality
Real number (ℝ≥0)
| Distinct count | 7 |
|---|---|
| Unique (%) | 0.1% |
| Missing | 0 |
| Missing (%) | 0.0% |
| Infinite | 0 |
| Infinite (%) | 0.0% |
| Mean | 5.809413131900058 |
|---|---|
| Minimum | 3 |
| Maximum | 9 |
| Zeros | 0 |
| Zeros (%) | 0.0% |
| Memory size | 40.3 KiB |
Quantile statistics
| Minimum | 3 |
|---|---|
| 5-th percentile | 5 |
| Q1 | 5 |
| median | 6 |
| Q3 | 6 |
| 95-th percentile | 7 |
| Maximum | 9 |
| Range | 6 |
| Interquartile range (IQR) | 1 |
Descriptive statistics
| Standard deviation | 0.8723731835 |
|---|---|
| Coefficient of variation (CV) | 0.150165458 |
| Kurtosis | 0.2200593955 |
| Mean | 5.809413132 |
| Median Absolute Deviation (MAD) | 1 |
| Skewness | 0.1914561169 |
| Sum | 29994 |
| Variance | 0.7610349713 |
| Value | Count | Frequency (%) | |
| 6 | 2264 | 43.9% | |
| 5 | 1690 | 32.7% | |
| 7 | 845 | 16.4% | |
| 4 | 193 | 3.7% | |
| 8 | 146 | 2.8% | |
| 3 | 20 | 0.4% | |
| 9 | 5 | 0.1% |
| Value | Count | Frequency (%) | |
| 3 | 20 | 0.4% | |
| 4 | 193 | 3.7% | |
| 5 | 1690 | 32.7% | |
| 6 | 2264 | 43.9% | |
| 7 | 845 | 16.4% |
| Value | Count | Frequency (%) | |
| 9 | 5 | 0.1% | |
| 8 | 146 | 2.8% | |
| 7 | 845 | 16.4% | |
| 6 | 2264 | 43.9% | |
| 5 | 1690 | 32.7% |
q_grade
Categorical
| Distinct count | 3 |
|---|---|
| Unique (%) | 0.1% |
| Missing | 0 |
| Missing (%) | 0.0% |
| Memory size | 5.1 KiB |
| medium | |
|---|---|
| high | |
| low | 213 |
| Value | Count | Frequency (%) | |
| medium | 3954 | 76.6% | |
| high | 996 | 19.3% | |
| low | 213 | 4.1% |
Length
| Max length | 6 |
|---|---|
| Median length | 6 |
| Mean length | 5.490412551 |
| Min length | 3 |
wine_body
Categorical
| Distinct count | 3 |
|---|---|
| Unique (%) | 0.1% |
| Missing | 0 |
| Missing (%) | 0.0% |
| Memory size | 5.1 KiB |
| light | |
|---|---|
| medium | 395 |
| full | 47 |
| Value | Count | Frequency (%) | |
| light | 4721 | 91.4% | |
| medium | 395 | 7.7% | |
| full | 47 | 0.9% |
Length
| Max length | 6 |
|---|---|
| Median length | 5 |
| Mean length | 5.067402673 |
| Min length | 4 |
dry_sweet
Categorical
| Distinct count | 5 |
|---|---|
| Unique (%) | 0.1% |
| Missing | 0 |
| Missing (%) | 0.0% |
| Memory size | 5.2 KiB |
| dry | |
|---|---|
| off-dry | 827 |
| bone dry | 72 |
| very sweet | 0 |
| sweet | 0 |
| Value | Count | Frequency (%) | |
| dry | 4264 | 82.6% | |
| off-dry | 827 | 16.0% | |
| bone dry | 72 | 1.4% | |
| very sweet | 0 | 0.0% | |
| sweet | 0 | 0.0% |
Length
| Max length | 8 |
|---|---|
| Median length | 3 |
| Mean length | 3.710439667 |
| Min length | 3 |
Pearson's r
The Pearson's correlation coefficient (r) is a measure of linear correlation between two variables. It's value lies between -1 and +1, -1 indicating total negative linear correlation, 0 indicating no linear correlation and 1 indicating total positive linear correlation. Furthermore, r is invariant under separate changes in location and scale of the two variables, implying that for a linear function the angle to the x-axis does not affect r.To calculate r for two variables X and Y, one divides the covariance of X and Y by the product of their standard deviations.
Spearman's ρ
The Spearman's rank correlation coefficient (ρ) is a measure of monotonic correlation between two variables, and is therefore better in catching nonlinear monotonic correlations than Pearson's r. It's value lies between -1 and +1, -1 indicating total negative monotonic correlation, 0 indicating no monotonic correlation and 1 indicating total positive monotonic correlation.To calculate ρ for two variables X and Y, one divides the covariance of the rank variables of X and Y by the product of their standard deviations.
Kendall's τ
Similarly to Spearman's rank correlation coefficient, the Kendall rank correlation coefficient (τ) measures ordinal association between two variables. It's value lies between -1 and +1, -1 indicating total negative correlation, 0 indicating no correlation and 1 indicating total positive correlation.To calculate τ for two variables X and Y, one determines the number of concordant and discordant pairs of observations. τ is given by the number of concordant pairs minus the discordant pairs divided by the total number of pairs.
Phik (φk)
Phik (φk) is a new and practical correlation coefficient that works consistently between categorical, ordinal and interval variables, captures non-linear dependency and reverts to the Pearson correlation coefficient in case of a bivariate normal input distribution. There is extensive documentation available here.Cramér's V (φc)
Cramér's V is an association measure for nominal random variables. The coefficient ranges from 0 to 1, with 0 indicating independence and 1 indicating perfect association. The empirical estimators used for Cramér's V have been proved to be biased, even for large samples. We use a bias-corrected measure that has been proposed by Bergsma in 2013 that can be found here.First rows
| fixed acidity | volatile acidity | citric acid | residual sugar | chlorides | free sulfur dioxide | total sulfur dioxide | density | pH | sulphates | alcohol | quality | q_grade | wine_body | dry_sweet | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 0 | 7.4 | 0.70 | 0.00 | 1.9 | 0.076 | 11.0 | 34.0 | 0.998 | 3.51 | 0.56 | 9.4 | 5 | medium | light | dry |
| 1 | 7.8 | 0.88 | 0.00 | 2.6 | 0.098 | 25.0 | 67.0 | 0.997 | 3.20 | 0.68 | 9.8 | 5 | medium | light | dry |
| 2 | 7.8 | 0.76 | 0.04 | 2.3 | 0.092 | 15.0 | 54.0 | 0.997 | 3.26 | 0.65 | 9.8 | 5 | medium | light | dry |
| 3 | 11.2 | 0.28 | 0.56 | 1.9 | 0.075 | 17.0 | 60.0 | 0.998 | 3.16 | 0.58 | 9.8 | 6 | medium | light | dry |
| 4 | 7.4 | 0.66 | 0.00 | 1.8 | 0.075 | 13.0 | 40.0 | 0.998 | 3.51 | 0.56 | 9.4 | 5 | medium | light | dry |
| 5 | 7.9 | 0.60 | 0.06 | 1.6 | 0.069 | 15.0 | 59.0 | 0.996 | 3.30 | 0.46 | 9.4 | 5 | medium | light | dry |
| 6 | 7.3 | 0.65 | 0.00 | 1.2 | 0.065 | 15.0 | 21.0 | 0.995 | 3.39 | 0.47 | 10.0 | 7 | high | light | dry |
| 7 | 7.8 | 0.58 | 0.02 | 2.0 | 0.073 | 9.0 | 18.0 | 0.997 | 3.36 | 0.57 | 9.5 | 7 | high | light | dry |
| 8 | 7.5 | 0.50 | 0.36 | 6.1 | 0.071 | 17.0 | 102.0 | 0.998 | 3.35 | 0.80 | 10.5 | 5 | medium | light | dry |
| 9 | 6.7 | 0.58 | 0.08 | 1.8 | 0.097 | 15.0 | 65.0 | 0.996 | 3.28 | 0.54 | 9.2 | 5 | medium | light | dry |
Last rows
| fixed acidity | volatile acidity | citric acid | residual sugar | chlorides | free sulfur dioxide | total sulfur dioxide | density | pH | sulphates | alcohol | quality | q_grade | wine_body | dry_sweet | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 5153 | 6.8 | 0.220 | 0.36 | 1.20 | 0.052 | 38.0 | 127.0 | 0.993 | 3.04 | 0.54 | 9.2 | 5 | medium | light | dry |
| 5154 | 4.9 | 0.235 | 0.27 | 11.75 | 0.030 | 34.0 | 118.0 | 0.995 | 3.07 | 0.50 | 9.4 | 6 | medium | light | off-dry |
| 5155 | 6.1 | 0.340 | 0.29 | 2.20 | 0.036 | 25.0 | 100.0 | 0.989 | 3.06 | 0.44 | 11.8 | 6 | medium | light | dry |
| 5156 | 5.7 | 0.210 | 0.32 | 0.90 | 0.038 | 38.0 | 121.0 | 0.991 | 3.24 | 0.46 | 10.6 | 6 | medium | light | bone dry |
| 5157 | 6.5 | 0.230 | 0.38 | 1.30 | 0.032 | 29.0 | 112.0 | 0.993 | 3.29 | 0.54 | 9.7 | 5 | medium | light | dry |
| 5158 | 6.2 | 0.210 | 0.29 | 1.60 | 0.039 | 24.0 | 92.0 | 0.991 | 3.27 | 0.50 | 11.2 | 6 | medium | light | dry |
| 5159 | 6.6 | 0.320 | 0.36 | 8.00 | 0.047 | 57.0 | 168.0 | 0.995 | 3.15 | 0.46 | 9.6 | 5 | medium | light | dry |
| 5160 | 6.5 | 0.240 | 0.19 | 1.20 | 0.041 | 30.0 | 111.0 | 0.993 | 2.99 | 0.46 | 9.4 | 6 | medium | light | dry |
| 5161 | 5.5 | 0.290 | 0.30 | 1.10 | 0.022 | 20.0 | 110.0 | 0.989 | 3.34 | 0.38 | 12.8 | 7 | high | medium | dry |
| 5162 | 6.0 | 0.210 | 0.38 | 0.80 | 0.020 | 22.0 | 98.0 | 0.989 | 3.26 | 0.32 | 11.8 | 6 | medium | light | bone dry |